Hi @Keyur Hedau
Welcome to our forum!
As far as I know, removing the user and adding it back to the shared mailbox helps with syncing issues, but it doesn't necessarily resync all local folders and categories.
When you remove a user from a shared mailbox, their local data, such as folders and categories, may not be automatically resynced when they are re-added. This is because the local data is stored in the user's Outlook profile and not on the server.
As a result, users may need to manually reconfigure some settings. It is recommended that before deleting a user, it is best to back up their Outlook data files to ensure that no important information is lost.
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